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From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3] arm-soc: Add support for Sigma Designs Tango4
Date: Mon, 19 Oct 2015 18:32:36 +0100	[thread overview]
Message-ID: <20151019173235.GF29001@leverpostej> (raw)
In-Reply-To: <CAL_Jsq+jthx9ffnUm-G-TV9LdxBRp3SKyhyfcVu=7kN3CuumJw@mail.gmail.com>

> >>>> No pl310? A9 performance mon?
> >
> > Found "arm,cortex-a9-pmu" in arch/arm/kernel/perf_event_v7.c
> > Are the PMU registers available from non-secure mode, or is TrustZone
> > going to get in the way?
> 
> I don't recall off-hand.

Judging by the access permissions tables in c12.9 of the ARM ARM (ARM DDI
0406C.c), they're always accessible from non-secure PL1 in the absence
of the virtualization extensions.

Thanks,
Mark.

  reply	other threads:[~2015-10-19 17:32 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-02 16:02 [PATCH] arm-soc: Add Sigma Designs Tango4 port Mason
2015-10-02 16:10 ` Måns Rullgård
2015-10-02 16:33   ` Mason
2015-10-02 16:55     ` Måns Rullgård
2015-10-02 18:00       ` Mason
2015-10-02 17:13     ` Russell King - ARM Linux
2015-10-02 18:09       ` Mason
2015-10-02 18:53         ` Russell King - ARM Linux
2015-10-02 19:25           ` Mason
2015-10-02 19:56 ` Arnd Bergmann
2015-10-02 20:53   ` Mason
2015-10-02 21:11     ` Arnd Bergmann
2015-10-02 21:57       ` Mason
2015-10-02 22:12         ` Arnd Bergmann
2015-10-05 16:25           ` [PATCH v2] arm-soc: Add support for Sigma Designs Tango4 Marc Gonzalez
2015-10-06 15:57             ` [PATCH v3] " Marc Gonzalez
2015-10-09 13:18               ` Arnd Bergmann
2015-10-09 13:30                 ` Marc Gonzalez
2015-10-09 14:40                 ` Måns Rullgård
2015-10-09 19:01                 ` Mason
2015-10-09 20:24                   ` Måns Rullgård
2015-10-09 21:12                     ` Mason
2015-10-09 14:08               ` Rob Herring
2015-10-09 14:16                 ` Marc Gonzalez
2015-10-09 14:48                   ` Rob Herring
2015-10-13 15:54                 ` Marc Gonzalez
2015-10-13 17:55                   ` Rob Herring
2015-10-19 11:09                     ` Marc Gonzalez
2015-10-19 16:39                       ` Rob Herring
2015-10-19 17:32                         ` Mark Rutland [this message]
2015-10-20  9:20                           ` Marc Gonzalez
2015-10-20  9:50                         ` Marc Gonzalez
2015-10-20 10:04                           ` Russell King - ARM Linux
2015-10-20 10:54                             ` Marc Gonzalez
2015-10-09 14:12             ` [PATCH v2] " Rob Herring

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